[DeTomaso] ommission - ZF gear oil weight
Will Kooiman
will.kooiman at gmail.com
Mon Feb 9 23:52:00 EST 2015
I agree. I use 75W90NS.
>From the redline website about 75W90NS.
* Designed for transmissions and transaxles - helps to slow synchros for
easier shifting across a broad temperature range
* Contains extreme pressure additives like our 75W90 GL-5 oil, but lacks
friction modifiers to balance slipperiness
* Also used with clutch-type LSDs in racing for maximum lock up
On 2/9/15, 11:14 PM, "Pantdino via DeTomaso" <detomaso at poca.com> wrote:
> I'll go with Leslie Gray's experience.
> Most GL-5 oils say "approved for use with limited slip diffs" on the
> bottle, which means they have the "extra slippery additives." I guess
> if you could find some that didn't say that you could use it.
>
> But the Redline is NOT that expensive, guys, and for most owners there
> is no reason to change it every year
>
> Here's Leslie's email from a while ago:
>
>
>
> The Red Line oil NS designation means that in this particular oil there
> is NO
> additive added to reduce the clutch chatter in most limited slip
> differentials.
> Normally this additive is a good thing and almost mandatory in cars
> like the
> Corvette which has a fairly high degree of limited slip lock up.
> Our cars have a two issues with these extra slippery additives.
> Number
> one is our diff uses a rather low limited slip lock up so this extra
> slip
> actually decreases what little lock up we have. Number two is this
> additive will
> inhibit our synchro rings ability to do its job and in extreme cases
> will burn
> up the synchro rings and the towers on the gears costing big bucks.
> I've rebuilt ZF's since the late 1970's and have replaced dozens of
> synchro
> rings & gear sets due to the use of these additives.
> As Jack DeRyke says "your mileage may vary" !!!!
>
> Leslie A. Gray
>
>
>
>
>
> -----Original Message-----
> From: Bill Moore <bill at incendium.com>
> To: Robert W. Garven Jr. <robertgarven at earthlink.net>; DeTomaso List
> <detomaso at poca.com>
> Sent: Mon, Feb 9, 2015 8:08 pm
> Subject: Re: [DeTomaso] ommission - ZF gear oil weight
> Dennis Qellla, PPC, uses Pennzoil 80W-90 GL-5
>
> Cheers,
>
> Bill Moore
>
> Incendium Supply
>
> Calgary
>
> -------- Original message --------
>
> From: "Robert W. Garven Jr."
>
> Date:2015-02-09 8:08 PM (GMT-07:00)
>
> To: DeTomaso List
>
> Subject: Re: [DeTomaso] ommission - ZF gear oil weight
>
> Friends,
> Is there a consensus on what brand type gear oil for the ZF. Im using
> redline in my F car and it is very nice.
> I assume the diff is in the box also and share lubrication, the Ferrari
> does not need a friction modifier as the
> diferential is similar to a Porsche design and the clutches work wel
> without it. I use Redline 75/90 NS.
> Just curious what all you guys are using in your ZF's!
> Rob
> On Feb 9, 2015, at 5:04 PM, Larry Finch via DeTomaso
> <[1]detomaso at poca.com> wrote:
> All,
> I just noticed I omitted a rather necessary bit of information.
> Gear oil weight should be 80W90.
> Larry
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> Friends,
> Is there a consensus on what brand type gear oil for the ZF. Im
> using
> redline in my F car and it is very nice.
> I assume the diff is in the box also and share lubrication, the
> Ferrari
> does not need a friction modifier as the
> diferential is similar to a Porsche design and the clutches work wel
> without it. I use Redline 75/90 NS.
> Just curious what all you guys are using in your ZF's!
> Rob
> On Feb 9, 2015, at 5:04 PM, Larry Finch via DeTomaso
> <[1][4]detomaso at poca.com> wrote:
> All,
> I just noticed I omitted a rather necessary bit of information.
> Gear oil weight should be 80W90.
> Larry
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